import Vue from 'vue'
import VueRouter from 'vue-router'
// import Login from '../components/Login'
const Login = () => import(/* webpackChunkName:'login_home_welcome'*/ '../components/Login')
// import Home from '../components/Home'
const Home = () => import(/* webpackChunkName:'login_home_welcome'*/ '../components/Home')
// import Welcome from '../components/Welcome'
const Welcome = () => import(/* webpackChunkName:'login_home_welcome'*/ '../components/Welcome')

// import Users from '../components/user/Users'
const Users = () => import(/* webpackChunkName:'users_rights_roles'*/ '../components/user/Users')
// import Roles from '../components/power/Roles'
const Roles = () => import(/* webpackChunkName:'users_rights_roles'*/ '../components/power/Roles')
// import Rights from '../components/power/Rights'
const Rights = () => import(/* webpackChunkName:'users_rights_roles'*/ '../components/power/Rights')

// import Cate from '../components/goods/Cate'
const Cate = () => import(/* webpackChunkName:'cate_params'*/ '../components/goods/Cate')
// import Params from '../components/goods/Params'
const Params = () => import(/* webpackChunkName:'cate_params'*/ '../components/goods/Params')
// import List from '../components/goods/List'

const List = () => import(/* webpackChunkName:'list_add'*/ '../components/goods/List')
// import Add from '../components/goods/Add'
const Add = () => import(/* webpackChunkName:'list_add'*/ '../components/goods/Add')

// import Orders from '../components/order/Orders'
const Orders = () => import(/* webpackChunkName:'orders_report'*/ '../components/order/Order')
// import Report from '../components/report/Report'
const Report = () => import(/* webpackChunkName:'orders_report'*/ '../components/report/Report')


Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      component: Login
    }, {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        {
          path: '/welcome',
          component: Welcome
        },
        {
          path: '/users',
          component: Users
        },
        {
          path: '/categories',
          component: Cate
        },
        {
          path: '/goods',
          component: List
        },
        {
          path: '/orders',
          component: Orders
        },
        {
          path: '/params',
          component: Params
        },
        {
          path: '/reports',
          component: Report
        },
        {
          path: '/roles',
          component: Roles
        },
        {
          path: '/rights',
          component: Rights
        },
        {
          path: '/goods/add',
          component: Add
        }
      ]
    }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径，from 从哪个路径跳转而来， 
  // next 放行 ：next() 放行 next('/login') 强制跳转
  if (to.path === '/login') {
    return next()
  }
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) { return next('/login') }
  next()
})

export default router
